Cheng Kuang

Cheng Kuang (?-189) was a eunuch of the Later Han, and one of the Ten Eunuchs.

Biography
His position as an adviser to Emperor Ling of Han gave him great power, which he used unscrupulously to assassinate any who opposed him and committed many more atrocities. After Zhang Rang assassinated Grand Commander He Jin, the eunuchs were attacked by Yuan Shao. He fled through the palace, but was eventually killed with the other eunuchs.